In a park on a rainy day, a girl in a sailor uniform walks side by side with her childhood friend, shyly smiling. Amidst the nostalgic scenery, they suddenly realize they've fallen in love. Their first kiss, their first sex—she still doesn't understand why they broke up. She's experienced love and heartbreak, even dated a teacher and got caught at school. All of it now cherished as fond memories. As she reflects on her school days, the woman captures her grown-up self on camera.